Home / 13,078.32-19,625.82-4,757.54

Finding the Fourth Proportional to 13,078.32, 19,625.82 and 4,757.54

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Solution

The fourth proportional to 13,078.32, 19,625.82 and 4,757.54 is: 7,139.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,078.32 : 19,625.82 = 4,757.54 : x
  2. Step 2: Convert to fraction form
    13,078.32/19,625.82 = 4,757.54/x
  3. Step 3: Cross multiply
    13,078.32x = 19,625.82 × 4,757.54
  4. Step 4: Simplify right side
    13,078.32x = 93,370,623.68
  5. Step 5: Solve for x
    x = 93,370,623.68/13,078.32
  6. Step 6: Final answer
    x = 7,139.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.